应用生态学报2012，Vol.23Issue(8)：2287-2294,8.
南汇东滩湿地围垦水域内浮游动物群落结构的变化
Variations of zooplankton' s community structure in reclaimed waters of Nanhui east tidal flat of Shanghai, East China
摘要
Abstract
From October 2010 to July 2011, an investigation was conducted on the zooplankton communities in reclaimed and natural waters in Nanhui east tidal flat to study the seasonal variations of the zooplankton' s species composition, abundance, biomass, dominant species, and biodiversity , aimed to explore the differences in the zooplankton' s community structure within and outside the reclaimed waters and the relationships of the community structure with several indispensable environmental factors such as water salinity, water temperature, and human activities. A total of 30 zooplankton species were identified, among which, 24 species were in reclaimed waters and dominated by rotifers, and 14 species were in natural waters and dominated by copepods. The average abundance of the zooplankton was obviously higher in reclaimed waters than in natural waters, but the average biomass was in adverse. The dominant species in reclaimed waters were freshwater species, such as Brachionus angularis, B. calyciflorus, and Mesocyclops leuckarti, while those in natural waters were brackish species, such as Sinocalanus sinensis, Schmackeria poplesia, and Tortanus vermiculus. Both in reclaimed and in natural waters, the dominant species had seasonal alternation. The Shannon index ( H) and Pielou evenness index (J) of the zooplankton communities were higher in natural waters, but the Margalef species richness (d) and simplicity index (C) were higher in reclaimed waters. Cluster analysis and MDS evaluation indicated that there was an obvious difference in the comimunity structure of zooplankton between reclaimed and natural waters. Reclamation could be the primary cause for the variations of the zooplankton' s community structure in reclaimed waters, and environmental factors such as water salinity and tidal power also contributed to the variations.关键词
浮游动物/群落结构/生物多样性/围垦/南汇东滩Key words
zooplankton/ community structure/ species diversity/ reclamation/ Nanhui east tidal flat分类
农业科技引用本文复制引用
李强,马长安,吕巍巍,田伟,余骥,赵云龙..南汇东滩湿地围垦水域内浮游动物群落结构的变化[J].应用生态学报,2012,23(8):2287-2294,8.基金项目
"十二五"国家科技支撑计划项目(2010BAK69B14)、上海市科委重大项目(09DZ120010A,10DZ1200700)和公益性行业(农业)科研专项(200903056)资助. （2010BAK69B14）
